Twitter not showing my location, though privacy is set

I set my account to share my location with Twitter. Even though I set my privacy setting for 'everyone' to 'City', my status updates at Twitter say "I am at , - (Link)". The link, however, works fine, but my actual location (between "I'm at" and "- (Link)") should be the city and the country, which I added by $city and $country.